CN220982264U - Cement mortar early settlement deformation monitoring test device - Google Patents
Cement mortar early settlement deformation monitoring test device Download PDFInfo
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- CN220982264U CN220982264U CN202323154218.6U CN202323154218U CN220982264U CN 220982264 U CN220982264 U CN 220982264U CN 202323154218 U CN202323154218 U CN 202323154218U CN 220982264 U CN220982264 U CN 220982264U
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- 239000011083 cement mortar Substances 0.000 title claims abstract description 35
- 238000012544 monitoring process Methods 0.000 title claims abstract description 30
- 238000012360 testing method Methods 0.000 title claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 230000001105 regulatory effect Effects 0.000 claims abstract description 9
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 238000004062 sedimentation Methods 0.000 abstract description 15
- 239000004567 concrete Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011381 foam concrete Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model provides a cement mortar early sedimentation deformation monitoring test device. The test device comprises a bottom plate, a measuring tube and a measuring frame, wherein the measuring frame comprises two height regulating rods fixed at positions adjacent to two ends of the bottom plate, a measuring plate connected between the height regulating rods and a distance measuring mechanism arranged on the measuring plate, two ends of the measuring plate are respectively connected with the two height regulating rods in a sliding manner and can move up and down along the two height regulating rods, and a locking mechanism is arranged at the connecting part; the measuring tubes are provided with a plurality of measuring tubes, the bottom of each measuring tube is provided with a fixed base, the measuring tubes are arranged on the bottom plate through the fixed bases, the number of the distance measuring mechanisms is the same as that of the measuring tubes, the measuring tubes are arranged at the positions corresponding to the measuring tubes, and the measuring heads of the distance measuring mechanisms are opposite to the tube orifices of the measuring tubes. The utility model has simple operation, small and more accurate settlement amount error, and the measuring plate can be used for height adjustment, thereby meeting the monitoring requirements of different brands of sensors for monitoring the settlement in different degrees.
Description
Technical Field
The utility model relates to the technical field of civil engineering material tests, in particular to a cement mortar early settlement deformation monitoring test device.
Background
Concrete is a main building material in civil engineering, has rich raw materials, low price and high compressive strength, but has low tensile strength and small ultimate tensile deformation, and is easy to generate cracks in the construction and use processes, and early settlement shrinkage cracks are one of the cracks. After the concrete is poured, if the settlement is not continued, the surface of the concrete should be fixed in theory, but the phenomenon of weighing aggregate and solid particles frequently occurs between the end of the concrete pouring and final setting, and the settlement of the solid particles is hindered by different degrees to cause uneven settlement, so that plastic settlement cracks are induced. Therefore, the settlement deformation monitoring is carried out on the cement mortar just stirred, which is helpful for adjusting the mixing ratio of the cement mortar and ensuring the volume stability of the cement mortar.
The utility model discloses a foam concrete sedimentation distance testing arrangement of publication number CN202220406561, this measuring device's measuring part be the dipperstick, and the dipperstick can appear the slope at the in-process of placing and lead to the reading inaccurate, and can't accomplish automatic measurement, complex operation. In addition, the device can only complete the concrete sedimentation test of one mixing ratio at a time, and the size of the charging test box body is 30 multiplied by 50cm, so that more materials are consumed, and the sedimentation of concrete mortar and the like cannot be accurately measured.
Disclosure of Invention
The utility model provides a cement mortar early sedimentation deformation monitoring test device, which aims to solve the technical problem that the early sedimentation deformation of cement mortar cannot be quantitatively compared in the prior art.
In order to solve the technical problems, the utility model provides a cement mortar early sedimentation deformation monitoring test device, which comprises a bottom plate, a measuring tube arranged on the bottom plate and a measuring frame fixed on the bottom plate, wherein the measuring frame comprises two height adjusting rods fixed at positions adjacent to two ends of the bottom plate, a measuring plate connected between the height adjusting rods and a distance measuring mechanism arranged on the measuring plate, two ends of the measuring plate are respectively connected with the two height adjusting rods in a sliding manner and can move up and down along the two height adjusting rods, and a locking mechanism is arranged at a connecting part; the measuring tubes are provided with a plurality of measuring tubes, the bottom of each measuring tube is provided with a fixed base, the measuring tubes are arranged on the bottom plate through the fixed bases, the number of the distance measuring mechanisms is the same as that of the measuring tubes, the measuring tubes are arranged at the positions corresponding to the measuring tubes, and the measuring heads of the distance measuring mechanisms are opposite to the tube orifices of the measuring tubes.
The utility model has the preferable technical scheme that: the bottom of the fixed base of the measuring tube is provided with a first magnet component, the bottom plate is arranged to be a metal bottom plate, or a second magnet component which is mutually adsorbed with the first magnet component at the bottom of the fixed base is arranged at the position of the bottom plate corresponding to the position where the measuring tube is arranged.
The utility model has the preferable technical scheme that: the two ends of the measuring plate are respectively provided with a through hole, the measuring plate is correspondingly sleeved on the two height adjusting rods through the through holes at the two ends and can move up and down along the height adjusting rods, and the locking mechanism is a locking bolt.
The utility model has the preferable technical scheme that: the distance measuring mechanism is a displacement sensor or a laser distance meter and is provided with a display screen and a signal output interface.
The utility model has the preferable technical scheme that: the utility model discloses a test tube, including survey pipe, unable adjustment base, fixed base, survey the pipe material and be the PVC pipe, its length is 500mm, and the diameter is 32mm, survey the inside external screw thread interface that is equipped with of pipe one end, unable adjustment base is equipped with the internal screw thread interface rather than matcing, and survey pipe and unable adjustment base threaded connection.
The utility model has the preferable technical scheme that: the measuring plate is correspondingly provided with a mounting hole, and the ranging mechanism is fixed on the measuring plate through bolts.
The utility model has the preferable technical scheme that: the length of the bottom plate is 300mm, the width of the bottom plate is 120mm, the height of the bottom plate is 30mm, the bottom plate is made of cast iron, and the measuring tube is fixed with the bottom plate through a first magnet component arranged at the bottom of the fixed base.
The utility model has the preferable technical scheme that: the height regulating rods are smooth-surface supporting rods, the diameter of each height regulating rod is 15mm, and the length of each height regulating rod is 600mm; the two ends of the measuring plate are respectively provided with a threaded hole matched with the locking bolt, and the locking bolt stretches into the through hole through the threaded hole and is locked by the main height regulating rod.
The test device is suitable for quantitatively monitoring early sedimentation deformation of cement mortar after molding in a laboratory or a construction site, cement mortar is poured into the test tube for compaction when in use, the test tube is fixed on the bottom plate and the displacement sensor is started for monitoring, the operation is simple and convenient, the influence from the outside is small, the monitored sedimentation amount error is small and more accurate, in addition, the sensor fixing frame can also be used for adjusting the height, the monitoring requirements of different brand sensor monitoring ranges and different degrees of sedimentation can be met, and the usability of the device is higher.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a top view of the present utility model;
FIG. 3 is a front view of the present utility model;
FIG. 4 is a right side view of the present utility model;
FIG. 5 shows the early sedimentation deformation monitoring result of the cement mortar in the application example.
In the figure: 1-a bottom plate and 2-a fixed base; 3-height control rods; 4, measuring a tube; 5-measuring plate; 6-a locking mechanism; 7-distance measuring mechanism.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the utility model, i.e., the embodiments described are merely some, but not all, of the embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.
The embodiment provides a cement mortar subsides monitoring test device, as shown in fig. 1 to 4, including bottom plate 1, survey pipe 4 that is equipped with cement mortar and the measurement frame of fixing on the measurement frame, survey pipe 4 bottom is equipped with unable adjustment base 2, unable adjustment base 2 bottom is equipped with powerful magnet component, bottom plate 1 length is 300mm, and the width is 120mm, and the height is 30mm, bottom plate 1 is cast iron material, unable adjustment base 2 and bottom plate 1 pass through magnet component and adsorb fixedly. The measuring frame comprises two height adjusting rods 3 fixed on the two adjacent end portions of the bottom plate, a measuring plate 5 arranged between the two height adjusting rods 3 and three groups of measuring mechanisms 7 arranged on the measuring plate 5, two through holes are correspondingly formed in two ends of the measuring plate 5, the surface of the height adjusting rods 3 is smooth, the measuring plate 5 is correspondingly sleeved on the two height adjusting pipes 3 through the through holes in two ends and can move up and down along the height adjusting rods 3, and the measuring frame is fixedly locked through a locking mechanism 6. The measuring plate 5 both sides are opened there is the aperture of taking the internal screw thread, the diameter of aperture is 5mm, the length of internal screw thread is 22mm, locking mechanism 6 is the fixing bolt of length 30mm, and fixing bolt inserts the screw thread aperture to stretch into through-hole and high regulation and control pole 3 surface chucking and fix it. The distance measuring mechanism 7 is a displacement sensor or a laser distance meter and is provided with a display screen and a signal output interface. Three mounting holes are correspondingly formed in the measuring plate 5, each distance meter 7 is fixedly mounted on the measuring plate 5 through bolts, and the measuring head of each distance measuring mechanism 7 is opposite to the pipe orifice of the measuring pipe 4.
The inside external screw thread that has of one end of survey pipe 4 in the embodiment, screw length is 8mm, survey pipe 4 length is 500mm, survey pipe 4 diameter is 32mm, survey pipe 4 material is the PVC material. The fixed base 2 is provided with internal threads, the diameter of the threads is 32mm, the length of the threads is 10mm, the diameter of the height adjusting rod 3 is 15mm, and the length of the height adjusting rod is 600mm. The diameter of the ranging mechanism mounting hole is 2.5mm.
The method for using the cement mortar early settlement deformation monitoring device in the embodiment 2 is specifically as follows:
a. before monitoring, assembling the test tube 4 and the fixed base 2;
b. cement mortar after stirring is filled in the measuring tube 4, and the cement mortar is put on a vibrating table for compaction and trowelling.
C. The measuring tube 4 is sucked on the bottom plate 1, so that the measuring tube 4 can not move and incline, and can be fixed by hot melt adhesive if necessary.
D. The three sets of ranging mechanisms 7 are fixed on the measuring plate 5 with small holes by bolts, the height of the measuring plate 5 is adjusted, so that laser beams of the ranging mechanisms 7 can be beaten on the liquid level of cement mortar in the measuring tube 4, and the ranging mechanisms 7 are controlled within the range.
E. After the test device is stable, the initial value L 0 of the cement mortar liquid level, which is beaten in the test tube 4 by the distance measuring mechanism 7, is recorded.
F. Every time t, the numerical value L of the cement mortar liquid level of the displacement sensor in the measuring tube is recorded.
Then calculating the early sedimentation deformation rate of cement mortar according to the following formula:
In the middle of
The sedimentation deformation rate corresponding to the moment S t -t;
L 0 -reading of the displacement sensor at the initial moment, and mm;
Reading of the displacement sensor at the moment L t -t, and mm;
L 0、Lt readings were all accurate to 0.001mm.
The application of the utility model is further described below with reference to specific examples, the measuring process of which is monitored by the cement mortar sedimentation monitoring test device in example 1,
The cement mortar used in application example 1 is hydraulic ECC, and the mixing ratio is: the water-gel ratio is 0.3, the water consumption is 310kg/m 3, the cement is 516kg/m 3, the fly ash is 516kg/m 3, the sand is 698kg/m 3, the water reducer is 10.32kg/m 3, the thickener is 0.516kg/m 3, and the PVA fiber volume mixing amount is 1.0%.
The cement mortar used in application example 2 is hydraulic ECC, and the mixing ratio is: the water-gel ratio is 0.3, the water consumption is 310kg/m 3, the cement is 516kg/m 3, the fly ash is 516kg/m 3, the sand is 698kg/m 3, the water reducer is 10.32kg/m 3, the thickener is 0.516kg/m 3, and the PVA fiber volume mixing amount is 1.5%.
The results of monitoring early sedimentation deformation of the cement mortar of the application example are shown in table 1 and fig. 5.
TABLE 1 monitoring results of early settling deformation of cement mortar
The utility model has simple and convenient operation, less influence from the outside, small and more accurate settlement amount error of monitoring, and the sensor fixing frame can also be used for height adjustment, thereby meeting the monitoring requirements of different brands of sensors for monitoring the settlement in different degrees and having higher availability of the device.
The foregoing is merely illustrative and explanatory of the utility model, as it is well within the scope of the utility model, as it is intended to provide those skilled in the art with various modifications, additions and substitutions to the specific embodiments disclosed and those skilled in the art without departing from the scope of the utility model as disclosed in the accompanying claims.
Claims (8)
1. The utility model provides a cement mortar early settlement deformation monitoring test device which characterized in that: the test device comprises a bottom plate (1), a measuring tube (4) arranged on the bottom plate (1) and a measuring frame fixed on the bottom plate (1), wherein the measuring frame comprises two height adjusting rods (3) fixed at positions adjacent to two ends of the bottom plate (1), a measuring plate (5) connected between the height adjusting rods (3) and a distance measuring mechanism (7) arranged on the measuring plate (5), two ends of the measuring plate (5) are respectively connected with the two height adjusting rods (3) in a sliding manner, and can move up and down along the two height adjusting rods (3), and a locking mechanism (6) is arranged at a connecting position; the measuring tubes (4) are provided with a plurality of measuring tubes, the bottom of each measuring tube (4) is provided with a fixed base (2), the measuring tubes are arranged on the bottom plate (1) through the fixed bases (2), the number of the distance measuring mechanisms (7) is the same as that of the measuring tubes (4), the measuring tubes are arranged at positions corresponding to the measuring tubes (4), and the measuring heads of each distance measuring mechanism (7) are opposite to the tube orifices of the measuring tubes (4).
2. The cement mortar early settlement deformation monitoring test device according to claim 1, wherein: the bottom of a fixed base (2) of the measuring tube (4) is provided with a first magnet component, the bottom plate (1) is set to be a metal bottom plate, or a second magnet component which is mutually adsorbed with the first magnet component at the bottom of the fixed base (2) is arranged at the position of the bottom plate (1) corresponding to the installation of the measuring tube (4).
3. The cement mortar early settlement deformation monitoring test device according to claim 1 or 2, wherein: the two ends of the measuring plate (5) are respectively provided with a through hole, the measuring plate (5) is correspondingly sleeved on the two height adjusting rods (3) through the through holes at the two ends and can move up and down along the height adjusting rods (3), and the locking mechanism (6) is a locking bolt.
4. The cement mortar early settlement deformation monitoring test device according to claim 1 or 2, wherein: the distance measuring mechanism (7) is a displacement sensor or a laser distance meter and is provided with a display screen and a signal output interface.
5. The cement mortar early settlement deformation monitoring test device according to claim 1 or 2, wherein: the utility model discloses a fixing base, including survey pipe (4), fixed base, fixing base (2), survey pipe (4) material and be PVC pipe, its length is 500mm, and the diameter is 32mm, survey pipe (4) one end inside be equipped with the external screw thread interface that length is 8mm, fixed base (2) be equipped with its matched internal screw thread interface, and survey pipe (4) and fixed base (2) threaded connection.
6. The cement mortar early settlement deformation monitoring test device according to claim 1 or 2, wherein: the measuring plate (5) is correspondingly provided with a mounting hole, and the distance measuring mechanism (7) is fixed on the measuring plate (5) through bolts.
7. The cement mortar early settlement deformation monitoring test device according to claim 2, wherein: the length of the bottom plate (1) is 300mm, the width of the bottom plate is 120mm, the height of the bottom plate is 30mm, the bottom plate (1) is made of cast iron, and the measuring tube (4) is fixed with the bottom plate (1) through a first magnet component arranged at the bottom of the fixed base (2).
8. A cement mortar early settlement deformation monitoring test device according to claim 3, characterized in that: the height adjusting rods (3) are support rods with smooth surfaces, the diameter of each height adjusting rod is 15mm, and the length of each height adjusting rod is 600mm; the two ends of the measuring plate (5) are respectively provided with threaded holes matched with locking bolts, and the locking bolts extend into the through holes through the threaded holes and are locked by the main height regulating and controlling rod (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323154218.6U CN220982264U (en) | 2023-11-22 | 2023-11-22 | Cement mortar early settlement deformation monitoring test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323154218.6U CN220982264U (en) | 2023-11-22 | 2023-11-22 | Cement mortar early settlement deformation monitoring test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220982264U true CN220982264U (en) | 2024-05-17 |
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ID=91059643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323154218.6U Active CN220982264U (en) | 2023-11-22 | 2023-11-22 | Cement mortar early settlement deformation monitoring test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220982264U (en) |
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2023
- 2023-11-22 CN CN202323154218.6U patent/CN220982264U/en active Active
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